Motore di ricerca datesheet componenti elettronici |
|
UC1730 Scheda tecnica(PDF) 1 Page - Texas Instruments |
|
UC1730 Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 6 page Thermal Monitor UC1730 UC2730 UC3730 DESCRIPTION The UC1730 family of integrated circuit devices are designed to be used in a number of thermal monitoring applications. Each IC combines a tempera- ture transducer, precision reference, and temperature comparator allowing the device to respond with a logic output if temperatures exceed a user pro- grammed level. The reference on these devices is capable of supplying in excess of 250mA of output current − by setting a level of power dissipation the rise in die temperature will vary with airflow past the package, allowing the IC to respond to airflow conditions These devices come in an 8-Pin DIP, plastic or ceramic, a 5-Pin TO-220 or a PLCC-20 version. In the 8-Pin version, a PTAT (proportional to absolute temperature) output reports die temperature directly. This output is config- ured such that its output level can be easily scaled up with two external gain resistors. A second PTAT source is internally referenced to the temperature comparator. The other input to this comparator can then be externally pro- grammed to set a temperature threshold. When this temperature threshold is exceeded an alarm delay output is activated. Following the activation of the delay output, a separate open collector output is turned on. The delay pin can be programmed with an external RC to provide a time separation between activation of the delay pin and the alarm pin, permitting shutdown diagnostics in applications where the open collector outputs of multiple parts are wire OR’ed together. The 5-Pin version in the TO-220 package is well suited for monitoring heatsink temperatures. Enhanced airflow sensitivities can be obtained with this package by mounting the device to a small heatsink in the airstream. This version of the device does not include the PTAT output or the open col- lector alarm output. FEATURES • On-Chip Temperature Transducer • Temperature Comparator Gives Threshold Temperature Alarm • Power Reference Permits Airflow Diagnostics • Precision 2.5V Power Reference Permits Airflow Diagnostics • Transducer Output is Easily Scaled for Increased Sensitivity • Low 2.5mA Quiescent Current BLOCK DIAGRAM 10/94 Pin numbers shown for 8-Pin DIP, ( ) number for 5-Pin TO-220. |
Codice articolo simile - UC1730 |
|
Descrizione simile - UC1730 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |